for cycle Post: 302289059

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1. Shell Programming and Scripting

shell cycle

Hello I got a cycle in the script which open another scripts. if then action fi Scripts action will be running 2 times at the same time. Inside of action() is insert into the table. But what I want is that only first script can do insert into table. So how to do...

2. Shell Programming and Scripting

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Hello, I have files in a dir. I what to create a FOR cycle that will do this FOR <condition> do file=`ls <directory> | tail -1` echo $file mv -f $file <another dir> done What I want to now is what should I put in the <condition>. The condition I want is that the FOR will execute...

3. Shell Programming and Scripting

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4. Shell Programming and Scripting

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i have a question how to modify below script to generate the expect result below : test.sh #!/bin/bash for ((i=0; i < 25; i++)) do echo $1$i done current result: test.sh 20090101 200901010 200901011 200901012 200901013 200901014 200901015 200901016 200901017 200901018

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6. Shell Programming and Scripting

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7. UNIX for Beginners Questions & Answers

For cycle, process order

Hello, I am running a script under ubuntu 16.04 I have no problem with the script. My question is general algorithm of for file command. I just need to know how for file in *.txt process works. Let's say, I wish to run the script by sorting filename: for file in *.txt do "do something in...

LEARN ABOUT FREEBSD

tsort

TSORT(1)						    BSD General Commands Manual 						  TSORT(1)

NAME

     tsort -- topological sort of a directed graph

SYNOPSIS

     tsort [-dlq] [file]

DESCRIPTION

     The tsort utility takes a list of pairs of node names representing directed arcs in a graph and prints the nodes in topological order on
     standard output.  Input is taken from the named file, or from standard input if no file is given.

     There must be an even number of nodes in the input.  Node names specified on the same line should be white space separated.

     Presence of a node in a graph can be represented by an arc from the node to itself.  This is useful when a node is not connected to any other
     nodes.

     If the graph contains a cycle (and therefore cannot be properly sorted), one of the arcs in the cycle is ignored and the sort continues.
     Cycles are reported on standard error.

     The options are as follows:

     -d      Turn on debugging.

     -l      Search for and display the longest cycle.	Can take a very long time.

     -q      Do not display informational messages about cycles.  This is primarily intended for building libraries, where optimal ordering is not
	     critical, and cycles occur often.

SEE ALSO

     ar(1)

HISTORY

     The tsort command appeared in Version 7 AT&T UNIX.  This tsort command and manual page are derived from sources contributed to Berkeley by
     Michael Rendell of Memorial University of Newfoundland.

BUGS

     The tsort utility does not recognize multibyte characters.

BSD
								 December 27, 2006							       BSD